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Update 01952_optimize_distributed_group_by_sharding_key reference
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
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@ -19,10 +19,8 @@ explain select distinct on (k1) k2 from remote('127.{1,2}', view(select 1 k1, 2
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Expression (Projection)
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LimitBy
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Union
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Expression (Before LIMIT BY)
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LimitBy
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Expression ((Before LIMIT BY + (Before ORDER BY + (Convert VIEW subquery result to VIEW table structure + (Materialize constants after VIEW subquery + (Projection + Before ORDER BY))))))
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ReadFromStorage (SystemNumbers)
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Expression ((Before LIMIT BY + (Before ORDER BY + (Convert VIEW subquery result to VIEW table structure + (Materialize constants after VIEW subquery + (Projection + Before ORDER BY))))))
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ReadFromStorage (SystemNumbers)
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Expression
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ReadFromRemote (Read from remote replica)
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explain select distinct on (k1, k2) v from remote('127.{1,2}', view(select 1 k1, 2 k2, 3 v from numbers(2)), cityHash64(k1, k2)); -- optimized
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@ -58,11 +56,10 @@ Expression (Projection)
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Expression (Before LIMIT BY)
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Sorting (Merge sorted streams for ORDER BY, without aggregation)
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Union
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LimitBy
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Expression ((Before LIMIT BY + (Before ORDER BY + (Convert VIEW subquery result to VIEW table structure + (Materialize constants after VIEW subquery + (Projection + Before ORDER BY)))) [lifted up part]))
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Sorting (Sorting for ORDER BY)
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Expression ((Before ORDER BY + (Convert VIEW subquery result to VIEW table structure + (Materialize constants after VIEW subquery + (Projection + Before ORDER BY)))))
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ReadFromStorage (SystemNumbers)
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Expression ((Before ORDER BY + (Convert VIEW subquery result to VIEW table structure + (Materialize constants after VIEW subquery + (Projection + Before ORDER BY)))) [lifted up part])
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Sorting (Sorting for ORDER BY)
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Expression ((Before ORDER BY + (Convert VIEW subquery result to VIEW table structure + (Materialize constants after VIEW subquery + (Projection + Before ORDER BY)))))
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ReadFromStorage (SystemNumbers)
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ReadFromRemote (Read from remote replica)
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explain select distinct on (k1, k2) v from remote('127.{1,2}', view(select 1 k1, 2 k2, 3 v from numbers(2)), cityHash64(k1, k2)) order by v; -- optimized
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Expression (Projection)
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